Posted by phyllys on Sunday, January 6, 2013 at 5:56pm.
f(x)=x^33x^2+x12
=x^2(x3)+4(x3)
=x^2+4) (x3)
so if f(x) = 0 at x = 3,+/ 2i.
what is the f(x) factored form

PreCal.  Damon, Sunday, January 6, 2013 at 6:04pm
(x)=x^33x^2+x12
=x^2(x3)+4(x3) Not true
That would be
x^3  3x^2 + 4x  12
=========================
You have told me that the zeros of the function are:
3
2i
2i
Therefore the factored form is:
(x3)(x2i)(x+2i)
try multiplying that out

PreCal.  Damon, Sunday, January 6, 2013 at 6:09pm
that is
(x^2+4)(x3)
which is
x^3  3 x^2 + 4x 12
so I think you have a typo in your opening line

PreCal.  phyllys, Monday, January 7, 2013 at 7:48pm
where is the typo in which opening line? And I believe I used the wrong symbol for the factored function it's suppose to be a plus sign over a __ but I can't figure how to type this. and maybe that's what is giving us the answer you have given me. Could that be it? and that is not 12, negative 12 it's minus 12
Answer This Question
Related Questions
 PreCal.  write f(x) in factored form.
 PreCal.  use the complex zeros to give fully factored form, the first factor ...
 Precal (please help)  A polynomial of degree 4 that increases the yaxis at 6 ...
 precalculus  find the complex zeros of the polynomial function. write F in the...
 alegebra  1. What is the factored form of 4x 2 + 12x + 5? (1 point) (2x + 4)(2x...
 Math  This is the second part of a two part question for an online class. It ...
 Math  Can someone please tell me Why is (4x + 5) (2x  1) + (x  9) (2x  1) ...
 Math  Can someone please tell me Why is (4x + 5) (2x  1) + (x  9) (2x  1) ...
 Algebra  F) Why is (3x + 5) (x  2) + (2x  3) (x  2) not in factored form? ...
 Mat 117  •I am having trouble figuring out this question. Why is (3x + 5) (x  ...
More Related Questions